Contributing

All code contributions - including those of people having commit access - must
go through a pull request and approved by a core developer before being
merged. This is to ensure proper review of all the code.

Fork the project, create a feature branch, and send us a pull request.

To ensure a consistent code base, you should make sure the code follows
the Coding Standards
which we borrowed from Symfony.
Make sure to check out php-cs-fixer as this will help you a lot.